Rare earth magnet having excellent corrosion resistance

Details Rare earth magnet having excellent corrosion resistance Rare earth magnet having excellent corrosion resistance

1991-05-22

1992-12-01

Lovering, Richard D.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 12, 419 33, 419 57, 75243, 75244, 75254, 148101, 148105, 252 6255, 241 3, 241 15, B22F 100

Patent

active

051679140

ABSTRACT:
An (Fe, Co)-B-R tetragonal type magnet having a high corrosion resistance, which has a boundary phase stabilized by Co and Al against corrosion, and which consists essentially of:

REFERENCES:
patent: 4767450 (1988-08-01), Ishigaki et al.
patent: 4995905 (1991-02-01), Sagawa
patent: 5000800 (1991-03-01), Sagawa
patent: 5009706 (1991-04-01), Sakamoto et al.
patent: 5013411 (1991-05-01), Minowa et al.
patent: 5022939 (1991-06-01), Yajima et al.
patent: 5049208 (1991-09-01), Yajima et al.

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